Modeling split tensile strength of high strength self compacting concrete incorporating randomly oriented steel fibers and SiO₂ nanoparticles

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• 作者：Gholamreza Khalaj ; ^{gh.khalaj@srbiau.ac.ir} ; Ali Nazari
• 关键词：A. Ceramic&ndash ; matrix composites (CMCs) ; A. Discontinuous reinforcement ; A. Fibres ; C. Analytical modeling
• 刊名：Composites Part B: Engineering
• 出版年：2012
• 出版时间：June, 2012
• 年：2012
• 卷：43
• 期：4
• 页码：1887-1892
• 全文大小：483 K

文摘

In the present study, split tensile strength of self compacting concrete with SiO₂ nanoparticles and different amount of randomly oriented steel fibers has been investigated. Steel fibers were added to the concrete specimens containing SiO₂ nanoparticles with the average particle size of 80 nm and split tensile strength of the specimens was measured. The obtained results show that randomly oriented steel fibers up to 12 wt. % can improve the concrete strength. A model based on the rule of mixtures has been presented to predict the split tensile strength of the specimens to compare the effect of nanoparticles on split tensile strength of the specimens. The obtained results from the proposed model are in good agreement with those obtained from the experiment.